Time zone Image
If you activate this checkbox, enter a valid date and a place, and click
the "continue" button, a time zone worldmap will be shown at the bottom of
the next screen. The birth place will be marked on the map and information
will be given about the Universal Time and the time zone of the place for
the given birth date and time.

When you click on the time zone map image, an extensive help page will
appear which explains more details of the time zone map, and reveals some
secrets for special data entry requirements. Please try it out.